Parquetry design asphalt tile die



Jan- 19,l 1954 H. `A. HAcHMElsTER PARQUETRY DESIGN ASPHALT TILE DIE 5Sheets-Sheet l Filed Feb. l, 1951 e' mfg/am@ ATTD R N EYS `Ian. 19, 1954H. A. HAc-:HMElsTER Filed Feb. l, 1951 s sheefssheet 2 457 Jl J0) T1L25@ 6) aule@ efmi'e sill@ e LI|35-FL #n Mmzfmwlwrl ,w

a e' amww@ ATTD RN EYE Jan. 19, 1954 H. A. HAcHMElsTER l 2,666,382

PARQUETRY DESIGN ASPHALT TILE DIE A Filed Feb. l, 1951 5 Sheets-Sheet 3ATTD RN EYS Patented Jan. 19, 1954 UNI TED STATES PAT E N T OF FIC E$566,382 PRQEIRY' fiiESi-GNASPHLT TILE DIE AHarry A. yHachmeister,vPittsburgh.,` Pa. Appiatoieiifuary 1, 1951, 'Serial No.208,897

. l Y 'This invention relates tostamping dies or 'the type yhavingcutting er shearing 'aridr nier-*king Blades 'in combination withresilient ejecting means positioned ybetween the blades', and inpa-'rticular `a multiple ldie havinglo-wei shearing elements adjustablymounted "on the sides of blocks with Yupper shearing blades and designforming elements-carried "by upper shoe, 'positioned to coast `with'tiie Vl'cwer cutting bars fanti hav-'ing bioessdf sponge rapperpositioned "between ythe elements for ejectir'ig thefs'tamped-'eiemeiitsfrom the dies.

The purpose 'of this invention -isto provide means for stamping' asphaltz"tile units from 'sheet material withl the units 'of' tile cut 'and'impressed lith' designs simultaneously and with one operatin.

It-f'is diiiicult to cut asphalt v-tile with stamping diesof'theenclosedtype whereithefour'edges are cut simultaneously because theasphalt cii'ngs l:to the Vdies and lit is also diiiicult to "impressdesigns in vthe surface of asphalt unit-s "because Eit is "difficult toaccurateiy position the units after Vtli'ey are-cut. With this -thoughtin inind fthis fini/enfd tio'nfcoiitemplates an'i'mprovem'ethod of"corporat'ing design impressingunits 'in-cciibmation with cuttingknivesfaii-providingbroolss dfsponge rubber betweenthe cuttirigeiementsandizripress ing units whereby the '-til'e units are :postiveiy ejectedfrom the dies 'assoon as fth'e upper dies leave coactinglowerdies.

The object of this invention is, therefore, `vto provide means formounting coacting dies in shoesf a punchp'ress wherebydesign'sare irn-`pres'sedin units and the units-are fcutfrom sheet materialwithoneoperation.v i

Another object fof fthe invention is `to provide means in an upper diervfor cutting andrinipifessing designs inasphalt 'tile whereby thetiieiisfeiected from -the dies f as soon 1. as 4the dies separate.

fAnother object of the invention is -tofprovide means in an upper diehavingcuttingfbladeson foursides with impressing die elementsbetween theblades :formoun'ting sponge -rubber--biocksbeg twe'entiie impressing dieelements and'blades.

A 'further object Vor the invention is no provides' combination die forsimultaneously impressing de sig'nsvin and cutting asphalt'tile fromsheet ma* teriaiwhich 'is 'ofa vsiniplev and' e@chemical.cori-Astruction.

With thse' and other obj ects -andadvantages in'view' the inventionembodies aiowershoeihaving lower cutting bars ad-justably mountedin-.the sides` of kbloeksand `with. stripperel-ements i posi- 2 havingupper cutting blades, design impressing' blades and sponge 'rubberYblocks positioned be'- twleen the blades, mounted 4to register withcuttingbarsof the lower shoe.

Other lfeatures and vadvantages Aoi Ithe' invention Vwi-ll appear from-the following description taken in connection with the drawingswherein:

Figure '51 is a -view looking upwardly 'taken on line =i-| of `Figure 3showing a plurality :of squares with Vdesign impressing bladespositioned between 'fthe cutting knives and with vsponge 'rubber blockspositioned-betweenthe blades :and also between the bladesand-cuttingkrii-ves.

Figure 2 -is a similar view looking downwardly taken -on line l2-2 ofFigure 3 showing the lower cutting bars and stripper frame.

Figure 3 isa'iront elevational view showing the parts assembled andshowing the upper shoe Kwith tilielupper fkn'ives thereon spaced vvfrom4the lower cuttinglbars of thelowershoe.

Figure '4 Iis la detail-chan enlarged-scalev taken on line '4-4 ofFigure 2 showing the positionvof the vdies at the end ofthe cuttingstroke.

Figure f5 is asimilar view taken'onliiieE-lS-of Figure 2 showing theupperdies'inithe' upper positionwherein 4'the-dies 'are spaced Ifrom thelower diesv 'ffthe lower shoe'.

v Figure-"64s asimilar section rshowing the meeting edges of two of thedies and with the-knives oi fthe Vupper shoe `actuated through the'cutting andinipressing operation. g

Figure 7 is a detail showing a section through the mounting of one "ofvthe design impressing blades.

"FigureiSlis-adetail -showing partsfof the strip-- per frame with partsbroken away.

YFigiire 9 isa cross section 'through-the stripperfiaineftakenfondinef9-9 o'iFigurelS.

Figure 10 is also :a vcross'section-throughthe stripper frametakenonline flat- |51 oi Figure.

'-Figur'e 'f1-'1 'lis aide'tailiillustratingy amodieation whereinafbackingblade islinserted between the designformingplate'or blade and ashoe for foi-'rn-` ing-tile Oia; ciinerentl thickness.

Referring now -to the fdrawings -wherein like 'reference charactersdenote corresponding parts thea'sphalt-tileistamping die ofithisinventionzin` chid'es :an `upper ish'oe it 'having fa plurality ofsquaresthereon 1vzithlupper:cuttingknives .Irl ipo- .sitionedaroundithesquares :and `with design im-V pressing Lblades V|`2 between the-saidikn'ives, and a ll'ower; shoe t3 having i lower cutting bars .i |24r po-Z sitionediaround-the: 'edges of squares corresponding to thesquares of the upper shoe-and having "a strippen frame includinglongitudinally `disposed bars l5, I6, l1 and cross bars i8 and l at theends and also intermediate cross bars 2D, positioned around the lowercutting bars.

The lower shoe I3 is provided with extensions 2i and 22 and posts 23 and24, positioned on the extensions extend through openings and 25 onsimilar extensions 2'! and 2s of the upper shoe. The extensions 21 and28 of the upper shoe are provided with depending sleeves 29 and 3Q,respectively that provide guides for holding the upper shoe in positionupon the posts.

The lower dies of the lower shoe are formed with a plurality of masterblocks 3i that are secured to the shoes by cap screws 32 and the lowercutting bars Hi are secured to the blocks 3S by cap screws 33 thatextend through slotted openings 34. The openings 34 are provided withcountersunk outer ends 35 in which heads 3S of the cap screws .'33 arepositioned.

Rubber stripper return strips 31 with concave surfaces 38 and 3S in thesides are positioned at the sides of and between the blocks 3l and thestripper frame, which is held against the strips 3'! by countersunk headscrews iid. The screws 49 are threaded into the lower shoe i3 with locknuts lil provided on the screws for retaining the screws in adjustedpositions.

With the parts formed in this manner the lower cutting bars arepositioned against the sides of the master blocks 3l with the cuttingbars at the sides extended over the ends of the cutting bars on the endsof the blocks.

The stripper frame including extensions l5, il, i8 and l@ and also theintermediate strips is positioned on the upper ends of the rubberstripper return strips 3l and in the cutting action the strips movedownwardly as shown in Figures 4 and 6.

The upper shoe Il] is provided with a plurality of master blocks 42 forthe upper dies and the blocks 42, which are attached to the shoe by capscrews d3, are positioned directly above the master blocks 3l of thelower shoe. rlhe upper knives which are indicated by the numeral i i andwhich have elongated slots il therein are attached to the sides and endsof the blocks d2 by cap screws 45, heads i6 of which are positioned incounterbores :il around the outer ends of the openings M.

Strips for impressing lines or designs in the asphalt tile are alsocarried by the lower face of the block d2 and, as illustrated in Figuresi and 5 the strips, or blades l2 having V-shape lower ends i9 aresecured to bars iid by cap screws 5l and the bars 50 are secured to theblock i2 by cap screws 52.

As illustrated in Figures 1 and 5 the blades l2 are equally spaced inthe sections of the die and the blades at the center are separated by asponge rubber block 53, the intermediate part of which is cemented to aplate 54 and the plate is secured to the under surface of the masterblock 52 by screws 55. The corners of the block 53 are provided withrecesses 56 andv'l which provide clearance for the heads of the capscrews 5I.

The intermediate blades are separated by sponge rubber blocks 58 and 59,the upper surfaces of which are provided with recesses 643 and Si,respectively, and the inner surfaces 62 and t3, respectively arecemented to the under sur-u iaces of the mounting bars 5b. The outeredges of these blocks are also provided with recesses 6d and E5 toprovide clearance for the heads of the cap screws 5 l.

The intermediate blades are also separated from the cutting knives Ii byblocks 56 and 5l, the upper surfaces of which are provided with recessesit and 69, respectively which receive the mounting bars 'through whichthe blocks are cemented.

The block 56 is provided with corner pads lil and 'il and the block Siis provided with similar corner pads 'l2 and 'i3 which extend beyond theouter surfaces of the blocks at and El to insure forcing the tilesfromthe upper dies.

As illustrated in Figure 5, each of the mounting bars 5&3 is providedwith two dowel pins M that extend into openings 'i5 in the master blocki2 for locating the bars. These pins are located in different positionson each bar and with the bars numbered accordingly the bars will bereturned to the correct position.

The bars of the stripper section are formed of two strips of materialand the strips are secured together by rivets 1s, the ends of which arepeaned over, as illustrated in Figures 9 and 10 so that the upper andlower surfaces of the bars are smooth. The intermediate bars areprovided with bevel edges, as indicated by the numeral l?. The inneredges of the end bars Il are also beveled, as indicated at the point i8.

In the design illustrated in Figure 11 a backing sheet 'is is positionedbetween the mounting bars 5U and the upper shoe i@ and with this shoepositioned between the lower edges of the blades A8 and the master block3l and the thickness 0f the backing shoe corresponds with the thicknessof the tile being formed with the dies.

With the parts formed in this manner a sheet of material, as indicatedby the numeral 8i), is fed across the lower shoe and with downwardmovement of the upper shoe the squares are stamped from the sheet withthe lower V-shaped edges of the blades d3 impressing lines in thesurface of the sheet.

It will be understood that with impressing elements formed in differentpatterns or different shapes, diiferent designs may be impressed intothe surface of the asphalt tile and with the parts arranged in thismanner designs are impressed simultaneously with the cutting action, andas the upper shoe carries the upper dies upwardly the sponge rubberstrips the nished sections from the dies whereby these sections, withthe remaining material from which the sections are stamped, are removedfrom the dies and a new sheet positioned therein. f

With the lower cutting blades and upper cutting knives provided withvertically elongated slots in which the mounting cap screws arepositioned the die members or cutting elements are vertically adjustableon the master block and wear developing in the cutting edges may becompensated for. Furthermore with the blades i8 independently mounted onthe mounting bar 5t, thesey blades may be independently removed,sharpened and replaced.

It will be understood that modifications may be made in the design andarrangement of the parts without departing from the spirit of theinvention.Y

What is claimed is:

In a tile making die, an upper shoe having a plurality of squaresthereon, cutting knives positioned around the squares, design impressingblades arranged between said knives and having Vshaped lower ends, alower shoe having squares thereon and provided with cutting barspositioned around the edges of the squares, a stripper frame ,on saidlower shoe including longitudinally extending bars, cross bars extendingbetween said longitudinally extending bars and secured thereto,extensions on said upper and lower shoes provided With openings, postsextending through said openings, sleeves depending from the extensionson said upper shoe providing guides for said posts, master blockssecured to said lower shoe, said cutting bars being provided with aplurality of slots terminating in countersunk outer ends, cap screwsextending through said slots and having heads positioned in saidcountersunk outer ends, resilient return strips having concave surfacespositioned between said blocks, a, plurality of master blocks secured tosaid upper shoe and positioned directly above the blocks in said lowershoe, a plate secured to the undersurface of the master blocks on theupper shoe, sponge rubber blocks secured to said plate. and corner padssecured to the ends of certain of said sponge rubber blocks.

HARRY A. HACHMEISTER.

References Cited in the le of this patent UNITED STATES PATENTS NumberName Date 788,217 Mohr Apr. 25, 1905 828,226 Lorenz Aug. 7, 19061,082,985 Wilder Dec. 30, 1913 1,670,898 Messmer May 22, 1928 2,160,427Bowie May 30, 1939 2,278,542 Freeman Apr. 7, 1942 2,313,801 Carll Mar.16, 1943 2,364,835 Whistler et al Dec. 12, 1944 2,552,353 Troth May l8,1951

